MCQOPTIONS
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| 1. |
The diffusivity of copper in copper increases by how many times when the temperature is increased from 500 ° C to 1000 °C? |
| A. | 200000 |
| B. | 100000 |
| C. | 150000 |
| D. | 170000 |
| Answer» B. 100000 | |